virus in my d drive?

i plan on doing a destructive restore so my computer is fresh of all viruses but i found one on my D-drive!?! i read before that files in the drive used for back ups cant be deleted because they are protected by windows(supposedly not alterable either but..)...the infected file is a system volume file w/ long string of numbers and letters in it.. is there anthing i can do? i thought i could finally get rid of the viruses ad i dont want to be stopped by another obstacle.

 

k thnx my comp is fresh and AV updated and nothing seems amiss, i didnt think that would help me but thnx for proving me wrong...